-45 f to c

Step 1: Identify the conversion factor

The conversion factor from fahrenheit to celsius is:

1 fahrenheit = 0.950622 celsius

Step 2: Set up the calculation

To convert -45 fahrenheit to celsius, multiply -45 by the conversion factor 0.950622:

-45×0.950622

Step 3: Calculate

-45×0.950622=-42.778

Step 4: Round the result

The result is approximately: -42.78 celsius

Final Answer:

-45 fahrenheit is approximately -42.78 celsius.